Roku jumps after advertising deal with Amazon

** Shares of streaming firm Roku ROKU.O jump 11.5% to $83, over three-mth high, early Mon after announcing exclusive partnership with Amazon.com AMZN.O

** Both companies early Mon said new integration gives advertisers access to the largest authenticated connected TV footprint in the U.S.

** Collaboration enables advertisers to reach an estimated 80 mln U.S. households through the Amazon platform

** Early tests of integration show advertisers using new solution reached 40% more "unique viewers with the same budget and reduced how often the same person saw an ad by nearly 30%," according to the statement

** With move on Mon, ROKU shares up about 12% YTD

** AMZN shares down marginally on the session